Modeling and Simulation of Static Characteristics during Unloading of Vane Compressors

China Mechanical Engineering ›› 2011, Vol. 22 ›› Issue (20): 2419-2422.

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Modeling and Simulation of Static Characteristics during Unloading of Vane Compressors

Sun Tongsheng;Xu Dezhang;Tang Lingfeng

Anhui Polytechnic University,Wuhu,Anhui,241000

Online:2011-10-25 Published:2011-11-02
Supported by:

Anhui Provincial Natural Science Foundation of China（No. 11040606M144）;
Anhui Provincial Natural Science Foundation of Higher Education of China（No. KJ2011B018，KJ2011B016）

滑片式压缩机卸荷过程的静态特性建模与仿真

孙铜生;许德章;唐铃凤

安徽工程大学,芜湖,241000

基金资助:
安徽省自然科学基金资助项目(11040606M144)；安徽省高校自然科学基金资助项目(KJ2011B018，KJ2011B016)
Anhui Provincial Natural Science Foundation of China（No. 11040606M144）;
Anhui Provincial Natural Science Foundation of Higher Education of China（No. KJ2011B018，KJ2011B016）

Abstract

Abstract:

In order to study static characteristics during unloading of vane compressors,flow models of fluid entering air intake and fluid entering unloading valve were built.It is found that the relation of dimensionless flow and pressure is parabolic and dimensionless flow decreases with the increasing of pressure by analysis of pressure and flow characteristics.Slope of pressure gain curve increases with ratio of outlet flow coefficient and inlet flow coefficient through research of pressure gain characteristics.At last,it is discovered that flow increases with displacement of sliding pole by means of displacement and flow curve. Static characteristics test of 22kW vane compressor verified the above conclusions.The research results provide important theoretical guidance for improvement of response speed and open-closing characteristics of unloading valve.

Key words:

vane compressor, unloading valve, static characteristics, flow, pressure gain

摘要：

为研究滑片压缩机卸荷过程的静态特性，建立了流体进入进气口及卸荷阀的流量模型。通过压力-流量特性分析发现，量纲一流量与压力成抛物线关系，并随着压力的增大而减小;通过压力增益特性分析发现，增益曲线的斜率随出口与进口流量系数的比值增大而增大;通过位移-流量特性分析发现，流量随滑柱位移的增大而增大。22kW滑片压缩机的静态特性测试验证了仿真结果。



关键词:

滑片压缩机, 卸荷阀, 静态特性, 流量, 压力增益

CLC Number:

TH455

SUN Tong-Sheng, HU De-Zhang, TANG Ling-Feng.

Modeling and Simulation of Static Characteristics during Unloading of Vane Compressors

[J]. China Mechanical Engineering, 2011, 22(20): 2419-2422.

孙铜生, 许德章, 唐铃凤.

滑片式压缩机卸荷过程的静态特性建模与仿真

[J]. 中国机械工程, 2011, 22(20): 2419-2422.

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Modeling and Simulation of Static Characteristics during Unloading of Vane Compressors

滑片式压缩机卸荷过程的静态特性建模与仿真

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